NEET Sample Paper NEET Sample Test Paper-81

  • question_answer
    Necrosis in crops is due to the deficiency of which ions/elements?

    A)  calcium, phosphorus, potassium, zinc

    B)  sulphur, calcium, potassium, molybdenum

    C)  nitrogen, potassium, sulphur, molybdenum

    D)  manganese, sulphur, nitrogen, calcium

    Correct Answer: B

    Solution :

    Deficiency of sulphur leads to chlorosis followed by necrosis. Deficiency of calcium leads to stunted growth, chlorosis, necrosis and curling. Deficiency of potassium leads to chlorosis followed by necrosis. Deficiency of molybdenum leads to marginal necrosis.


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